Improved cord-tightener for curtains



@uitrit tutes @anni 'f'fr'e THOMAS C. LIPIINCOTT, OF PHILADELPHIA, IENNSYLVA NIAl Lener; Patent No. 68,092, and August 27, 1867. r

IMPROVED CORD-TIGHTENEB FOR GUR'IAINS..

fitte' ,tgehnlt referat tu in' this @man utmt mit maling part :if 'thenuire,- i

TO ALL WHOM IT MAY` CON CERN:

Be it known that I, THOMAS C. L IPPINCTT, of the city andfcouuty ofPhiladelphia, and'State ofPennsylvania, have inventeda new and usefulimprovement in C ord-Tighteners for Curtains; and I do hereby declarethat the following'is a full and exact description thereof, referencebeing had to the accompanying drawings, and to the letters ofreferencemarlced thereon. Y i

The nature of niy invention consists in. the combination of a slidingbar with a rack having recessed teeth ,to receive a tooth'of the bar,the latter being also provided with a hook or pulley over which thecarrying-cord of the curtain works.

The'construction and operatie-n ofthe improved tightener will beunderstood by the following description. In the accompanying drawings,which make a part of this specification-4 I -Figure 1 is a face viewofthe improved fastener.

Figure is 'an edge view ofthe same.

Figure 3 is a face view ofthe rack B.

Like letters in all the `figures indicate the same parts.

A is a vertical sliding bar, which is provided with a hook, a, overwhich the carrying-eord'lof the curtain passes. If desired, a pulley maybe used insteadfbf thc hook.' On the rear side of the bar there is atooth, b, which at pleasure is brought into connection with any of th'eseries of teeth c ofthe stationary rack B. The said rack has holes,`d'd, near itsl ends, for theinsertion of screws for confining 4it to thewindow-facing. The teeth c of the rack are closed at one'side, as seenin Iig. 3, so as to'ustop the tooth 6 of the bar A when it has advancedto the middle ofthe rack. There are recesses, e, in the under side oftheteeth c,'into which the tooth a is pulled by the tension of Athecarrying-cord of the curtain. The rod A slides in, corresponding holes'in the lugs of the rack B. i

The operation is as followsz The tooth b of the sliding bar A isbroughtbeneath a tooth Vat the right height in the rack Bto give' theproper tension to the carrying-oord of the curtain,` and by movingthe-bar from left .to right the tooth a is brought immediately beneaththe recess `e ofthe rack-tooth c, and the tensionV of theV cord actingupon the bar by Vineans of 'its connection with, the hook a elevates it,so as tobring the tooth blinto the recess e, and thereby securing thebar, to prevent its turning either way when the carrying-cord isoperated Afor movingthe curtain either up or down. The connection of thesliding bar A with the rack B is brokenfor changing the altitudinalposition of the former by pulling it down, taking hold of the hook a forthatpnrpose, so as to bring the tooth b out of the recesse, andthen'turning 'the bar from right t 'left untilv the tooth is disengagedfrom the rack. 4 The Vtooth is represented by red lines in iig. 2 belowthe recess preparatory to its being disengaged. .Y l i It will readilyappear'that the improved fastener -is verycheaply made, as both the barandthe rack may be of cast iron; Another advantage which thedevieepossesses over other fasteners is, the impossibility 'of' itsgetting `out of order', l x o y What'I claim as my invention,'and desireto secure by LettersPatent, is-

The combination of the sliding bar A, constructed substantially asdescribed, with therack B, by means of the tooth. l of the bar and therecessed teeth c of the rack, substantially us described, andfor thepurpose specified. Y

In testimony` whereof I have hereunto set my hand nndailixed my Vsealthis 25th day of July, A1867'.

Trios.` c. LIPPINcoTT. [1.. s]

Witnesses:

STEPHEN Us'rro, JOHN, Wurm

